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ADT75:  ±2°C ACCURATE, 12-BIT DIGITAL TEMPERATURE SENSOR

The ADT75 is a complete temperature monitoring system in 8-lead MSOP and SOIC packages. It contains a band gap temperature sensor and 12-bit ADC to monitor and digitize the temperature to a resolution of 0.0625°C. The ADT75 is pin and register compatible with the LM75 and AD7416.

The ADT75 is specified for operation at supply voltages from 3 V to 5.5 V. Operating at 3.3 V, the supply ...More

ADT75:  ±2°C ACCURATE, 12-BIT DIGITAL TEMPERATURE SENSOR

Product Description

The ADT75 is a complete temperature monitoring system in 8-lead MSOP and SOIC packages. It contains a band gap temperature sensor and 12-bit ADC to monitor and digitize the temperature to a resolution of 0.0625°C. The ADT75 is pin and register compatible with the LM75 and AD7416.

The ADT75 is specified for operation at supply voltages from 3 V to 5.5 V. Operating at 3.3 V, the supply current is typically 300 μA. The ADT75 offers a shutdown mode that powers down the device and gives a shutdown current of typically 3 μA. The ADT75 is rated for operation over the –55°C to +125°C temperature range.

Three pins (A0, A1 and A2) are available for address selection. There is also an open-drain OS/ALERT output that becomes active when temperature exceeds a programmable limit. This pin can operate in either comparator or interrupt mode.

Applications

  • Isolated Sensors
  • Environmental Control Systems
  • Computer Thermal Monitoring
  • Thermal Protection
  • Industrial Process Control
  • Power-system Monitors
  • Hand Held Applications

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    TECHNICAL DOCUMENTATION

    • 12-bit Temperature-to-digital Converter
    • B-Grade Accuracy ±1.0°C from
      0°C to 70°C
    • A-Grade Accuracy ±2.0°C from
      –25°C to 100°C
    • SMBus-/I2C- Compatible Interface
    • Operation from −55°C to +125°C
    • Operation from 3 V to 5.5 V
    • Overtemperature Indicator
    • Shutdown Mode for Low Power Consumption
    • Power Consumption 69 μW Typically at 3.3 V
    • Small, Low Cost 8-pin MSOP in Pb-Sn and Pb-free Packages
    • Standard 8-pin SOIC Pb-free Package
    • Output Type: Digital
    • Sensor Output: I²C ®,SMBus
    • Temp Res(°C/LSB): 0.0625°C/LSB
    • Supply Voltage Range: +3V to +5.5V
    • Temp Range(s): -55 to +125

    Functional Block Diagram for ADT75

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